Testing was done with a prototype of the new M.2 HAT, booting the Raspberry Pi from the NVMe drive —both because I happened to have one on my desk, and also because this is going to be a pretty common use case for the Raspberry Pi 5 —and just a reminder: the only thing you really need to remember about the prototype M.2 HAT is that the production version will almost inevitably look nothing like the one in this picture!

The hat also promises a snug fit with an adjustable chin cord and rear drawstring. It’s made from polyester, which is both waterproof and deflects sun rays away from your head. The unisex cap is perfect for both men and women, and is also available in a variety of colors. The wide-brim cooling cap features a sun cape to achieve added sun protection. It is designed in breathable and lightweight material that instantly cools up to keep you comfortable outdoors. The instant cooling technology highlights this product among the rest. The hat can be activated in three simple steps. Wet it, wring it out and wave it. This hat also comes complete with a built-in protective UV barrier. This helps to keep the harmful rays of the sun off of your head. The Ontel is made with 100% polyester, so it’s also quite durable, plus stain resistant too. It does need to be hand washed.Best Features: Protective UV lining, ventilated mesh, lightweight and breathable, cooling effect, adjustable size. Thanks for the detailed tests. Could you tell us a little about your behind the scenes in one of the articles? Especially about testing boards and software. What approaches and technologies do you use for this? There will be a PoE+ HAT specifically for Raspberry Pi 5, there is a picture of a prototype in the launch blog post. Older HATs and existing third-party products will not fit on Pi 5 as the PoE header has moved on the board. Best Features: This cooling hat is made with high-quality fabric with vented mesh side panels for breathability and increased air flow and drip-free cooling relief There are some people who are always cold no matter what the season, but the freezing temperatures of winter can be extra challenging, especially if you love to be outdoors year-round. The solution? The heated products of BERTSCHAT®!

Newer versions of these devices use a two-piece cooling cap system that is controlled by a computer, which helps circulate a cooled liquid through a cap a person wears during each chemotherapy treatment. A second cap, made from neoprene (a type of artificial rubber), covers the cooling cap to hold it in place and keep the cold from escaping. How might it work? Suchonwanit P, McMichael AJ. Alopecia in association with malignancy: A review. Am J Clin Dermatol. 2018; 19(6):853-865. Plus: There are some very good 3rd party cases for the RasPis that work as a massive passive cooler.For someone who is pretty sensitive to the heat, I spend a ton of time outdoors. On any given weekend you'll find me hiking, trail running, gardening, or taking long walks with my wife. To ensure that it fits properly, the rear of this cooling hat is adjustable for size. It should fit most people just fine. This is absolutely one of the best hats for hot weather out there at this time. Best Features: The lightweight, breathable, and durable cooling hat features evaporative cooling liner and UPF reflective technology to protect against UV rays

Even a modest improvement in performance as mentioned by Jeff, might be appreciated in places where ambient temperatures are higher. Ambient temperature isn’t stated or discussed here, but not everybody living with 40 Celsius ambient will have air conditioning. I see a trend here. And that trend is screaming: Don’t use HATs with a Pi5 if you actually want to use its full processing power! It's a bit hard to see, but the thermometer reads 77.7 degrees on the left (dry hat) and 54.5 degrees on the right (wet hat). The test was done with room temperature water on a 90-degree day.Evaporative cooling liner, up to 20 degrees cooler than the outdoor temperature, 99% protection from harmful UV rays Mission is pretty tight-lipped about the technology of their material except to say that it "enhances" the process of evaporation, pulling heat away from the body and into the air. To activate the vaporactive cooling technology, the lightweight material has to be wet. The second you dampen it, you'll get an immediate cooling effect. But, unlike regular hats, the material remains cool-to-the-touch instead of trapping steam and warming up as the sun beats down on you. For people that want an evaporative hat with style and comfort, Mission’s performance cooling hat is an excellent option. This particular cool hat comes in 8 different colors and is made with textured nylon poplin. Its not just sweat proof, but comes with UPF 50 sun protection technology to keep you protected under the sun. Let’s start with the most popular cooling hat out there. The Arctic Hat is famous for all the right reasons. In addition to boasting a highly effective evaporative cooling technology, the manufacturers claim that this hat offers up to 20 degrees lower temperature from the surrounding and 99% protection against UV rays.

I’ll be looking forward to comparisons between these and (e.g.) the flirc case. I’m using those with the RPI4 and they seem pretty good, if it reduces the throttling significantly but not eliminate it might still be worth as an alternative. The BUILTCOOL Mesh Cooling Baseball Hat is designed to be wet with water before being worn. It features a fabric weave combined with a hollow core construction. This allows it to hold onto water and gradually release it to keep you cool throughout the day.Made with high-quality fabric with vented mesh side panels for breathability and increased air flow and drip-free cooling relief It’s a fishing hat style that comes with drawstrings so you can adjust it accordingly. The net in front of the hat keeps you ventilated and cool for long hours under the sun. Custom Embroidered Hat , Personalized Dad Cap , Embroidery Logo baseball hat , Your own text monogram , Bachelorette , Small business Merch MISSION Cooling Performance Hat - Unisex Baseball Cap for Men and Women - Instant-Cooling Fabric,... Surgical scrub cap with stethoscope prints, Medical tool nurses hat for long hair, Stretchy soft surgeons headwear with opt buttons for mask